This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Why are Cepheid variable stars important in our study of the Milky Way galaxy? What will be an ... (Read 85 times)

jake

  • Hero Member
  • *****
  • Posts: 538
on: Jul 27, 2018
Why are Cepheid variable stars important in our study of the Milky Way galaxy?
 
  What will be an ideal response?

Question 2

The pressure of an interstellar gas cloud depends on the cloud's ___________________ _ and ___________________ _.
 
  Fill in the blank(s) with correct word


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

millet

  • Sr. Member
  • ****
  • Posts: 354
Reply #1 on: Jul 27, 2018
Answer to Question 1

They can be used to calibrate the period-luminosity relation, which is used to determine distances to stars.

Answer to Question 2

temperature, density
density, temperature


jake

  • Member
  • Posts: 538
Reply 2 on: Jul 27, 2018
YES! Correct, THANKS for helping me on my review

dreamfighter72

  • Member
  • Posts: 355
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

Liver spots have nothing whatsoever to do with the liver. They are a type of freckles commonly seen in older adults who have been out in the sun without sufficient sunscreen.

Did you know?

Though methadone is often used to treat dependency on other opioids, the drug itself can be abused. Crushing or snorting methadone can achieve the opiate "rush" desired by addicts. Improper use such as these can lead to a dangerous dependency on methadone. This drug now accounts for nearly one-third of opioid-related deaths.

Did you know?

Patients who have been on total parenteral nutrition for more than a few days may need to have foods gradually reintroduced to give the digestive tract time to start working again.

Did you know?

If you could remove all of your skin, it would weigh up to 5 pounds.

Did you know?

The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.

Aerial photo showing the placement of 24 study plots, each 50 m by 50 m, in the Chihuahuan Desert ne Aerial photo showing the placement of 24 study plots, each 50 m by 50 m, in the Chihuahuan Desert ne
People have seen patterns in the stars since ancient times.[5] This 1690 depiction of the constellat People have seen patterns in the stars since ancient times.[5] This 1690 depiction of the constellat
Spiral Galaxies Seen Nearly Edge On from the Milky Way Spiral Galaxies Seen Nearly Edge On from the Milky Way
A variable valve timing solenoid being controlled by applying voltage from the PCM. A variable valve timing solenoid being controlled by applying voltage from the PCM.
Variable Gases of the Atmosphere Variable Gases of the Atmosphere
Study Duddy 1 Study Duddy 1
Video: Regulation of GFR: autoregulation via myogenic mechanism Myogenic mechanism

For a complete list of videos, visit our video library